Improvement in machines for making wooden pins



R. H. WATSON, A. L.,KINGSBURY, w. D. 81A. 8. KING.

Machines for Making Wander: Pins.

No.133,907; Patent ed Dec.1O, 1872.

NIT D STATES PATEN OFFICE.

ROYAL H. WATsON AND ANDREW L. KI NGsBURY, OF LAPEER, AND WALTER D. K NGND A. sYDNEY KING, OF PONTIAO, MIOHIGAN, AssIGNORs TO ,ROYALYH. WATSONAND ANDREW L. KINGsBURY.

IMPROVEMENT IN MACHINES FOR MAKING WOODEN PiNS.

" Specification forming-part'of Letters Patent No. 133,907, datedDecember 10, 1872.

To all whom it may concern! A Be it known that we, R. H. WATsON and A.L. KINGsBURY, of Lapeer, in-the county of Lapeer, and W. D. KING and A.S. KING, of Pontiac, in the county of Oakland, and State 4 of Michigan,have invented a new and useful Improvement in Machines for Making WoodenPins, &c.; and we do declare that the following is a true and accuratedescription therei of, reference being had to the accompanying drawingand to the letters of reference marked thereon and being a part of thisspecification,

in which- Figure 1 is a plan of our machine; Fig. 2

is a sectional side elevation of the same with the pointing-die heldback and the cutting-die in the act of cutting; Fig. 3 is a similarfigure with the parts in the position they are at the completion of theprocess of cutting and pointin g a pin; and Fig. at is a perspectiveview of the cutting-die.

Similar letters of reference indicate corresponding parts in the severalfigures.

This invention relates to a machine for making and pointing wooden pins,such as are used by Joiners-dowel-pins, rake-teeth, &c. and is moreparticularly designed as an improvement on the machine for which LettersPatent-of the United States were issued to Royal H. Watson, bearing dateNovember 1,

1870, and No. 108,859. The invention consists, first, in the arrangementof said die on a bar reciprocated by mechanism more fully herein-v afterspecified; second, in the novel and peculiar arrangement of the partsfor operating the pointing-die; and, third, in the employment of acam-wheel on the driving-shaft for removing the pins from the die asthey are made, by means of a bent lever.

' In the drawing, A represents a table, preferably of metal, andsupported by suitable legs or standards. B are pillar-blocks,transversely disposed at one end of the table; and O is thedriving-shaft journaled therein, having at the inner end a face-plate,to whose wrist the pitman D is secured by a suitable strap; or the stubend of said strap may be bored to receive the wrist-pin, as shown. A Thepitman is forked and pivoted to a die-rod, E, which reciprocates througha long guide-box F. At the projecting end of the die-rod a die, G, Fig.4, is secured by a set-screw. This die is in the form of a pendentknife, a, for splitting a bolt from the timber fed up to it, and havinga hollow die, b, attached thereto, which gives the pin its form, thebore being less than the length, and of form of the finished pin. H is atransverse guide on the table, against which the timber rests, and-I isa stop against which it is fed up. J is a die-pin, working throughbearin gs in the lower part of the guide-box, cupped on the outer end topoint the wooden pins as they are formed, and provided with a head, 0,on the other; to engage with the recess or socket d in a spring, K, whendrawn back as far as the said socket. This spring is a curved leaf ofsteel, longitudinally securedin the frame under the pitman, at one end,the other being free to vibrate. L is a spring spirally coiled about thedie-pin J, within the recess in the guide-box, between its inner headand a pin through the die-pin. The pitman has its inner ends formed intwo downward-pointing hooks, e, which, at the completion of the pin, asin Fig. 3, engage with the head of the die-pin,

and draw the latter back until the recess in the spring is reached, whenthe latter engages with the head and retains thedie-pin, while thepitman returns with the die to out and form another pin, the timberbeingshown at f, Fig. 2. As the pitman completes its forward movement,and the wooden pin is nearly or quite formed, a stud, g, on the rear endof the die-rod E depresses the spring K and releases the die-pin, whosespring causes it to strike a smart blow on the end of the wooden pinstill in the forming-die, rounding that end so that it may enter thehole in which it is afterward to be driven. As the die is withdrawn theblock of wood is again fed up by the attendant, and in taking the nextout the pin previously make is forced out, or nearly out, of the backend of the die. To insure its detachment from the die in this positionthe forward and curved end of a lever, M, pivoted at h to the table, iscaused to strike the finished pin,

by a cam-wheel, N, on the driving-shaft, workin g in jaws at the rearend of said lever, de-

--taching said pin, which drops through an opening in the table into areceptacle beneath.

Although the machine can easily be operated by hand, through a crank atthe end of the driving-shaft, it is fitted with fast and loose,

pulleys O 0 to be driven by a belt from a line-shaft.

What we claim as our invention, and desire to secure by Letters Patent,is

1. The combination of the shaft 0, pitman D, die-rod E, guide-box F, dieG, guide H, and stop I on the table A, substantiallyas described, forthe purpose specified.

2, The combination of the spiral spring L, the curved and recessedspring K, the hooks e of the pitman, and stud g of the die-rod,substantially as shown and set forth. 4

3. The combination of the bent lever M, cam-wheel N", and drivingshaft 0with the die G, the lever being adapted to detach the finished pins fromthe die, as described.

ROYAL H. WATSON. ANDREW L. KINGSBURY. WALTER 1). KING.

A. SYDNEY KING.

Witnesses as to the signatures of WATSON and KrNesBURY:

JASPER BENTLY, .H. MONTGOMERY.

Witnesses as to the signatures of W. D. KING and A. S. KING:

J H; ANSELL, T. O. SEBRING.

